The third OS X 10.11.4 beta can be downloaded through the Apple Developer Center or via the Software Update Mechanism in the Mac App Store.

OS X 10.11.4 offers a couple of new features, such as the ability to support password protected notes in the Notes app, but like the recent OS X 10.11.3 update, it appears to focus primarily on under-the-hood bug fixes and performance improvements with few noticeable outward-facing changes. Almost all of Apple’s OS X updates to date have been smaller updates that improve performance rather than introduce new features.

We’ll update this post with any features or significant changes that are discovered in the third beta of OS X 10.11.4.

Top Rated Comments

Thanks for ruining my perfectly good computer with your yearly OS upgrades that are utter crapware. I will not be buying Apple again.

You are aware that you do not have to upgrade until you want to, right ?

They've been releasing an upgraded OS practically every year for the last 15 years.
10.0 beta in 2000
Cheetah in 2001
Puma in 2001
Jaguar in 2002
Panther in 2003
Tiger in 2005
Leopard in 2007
Snow Leopard in 2009
Lion in 2011
Mountain Lion in 2012
Mavericks in 2013
Yosemite in 2014
El Capitan in 2015

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